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Thread: ATC 250SX Rear Shock Alternatives

  1. #61
    Join Date
    Oct 2011
    Location
    Connecticut
    --
    88
    So I now have a choice.....

    A. Purchase a 300EX shock off of our favorite auction site for roughly $50

    or

    B. Purchase a 2001 Raptor Shock for $100. The Raptor shock is a direct Bolt-on to the 300ex and therefore should work on the SX. It has to be a 2001 because that is the only year where they had a remote res on it. My feeling is the raptor shock has 3 adjustment points (preload, compression, and something else) which may be helpful in tuning it for the SX. It may also just end up being too stiff. Also, with all of those parts, it has more potential to fail over time assuming the one I receive is good.

    Thoughts?

  2. #62
    GSUwhiskers's Avatar
    GSUwhiskers is offline At The Back Of The Pack Arm chair racerFirst time rider
    Join Date
    May 2014
    Location
    Georgia
    --
    168
    I wish I could choose one and you choose the other and we see which works better, but I'm too strapped at the moment for experimentation. I'm really glad you have taken such initiative though. So have you absolutely verified that a 300ex shock will fit a 250SX? I saw you mention having to fab some bushings?

  3. #63
    Join Date
    Oct 2011
    Location
    Connecticut
    --
    88
    If you search deep in the bowels of the site, you find some interesting stuff!

    In the last post of this thread, we have proof of someone running a 2001 raptor rear in an SX, but he claims in other threads that it's a little too stiff even at the softest settings. I'm 100% positive that the raptor shock is a direct bolt on to a 300ex and 99% sure that the 300ex will bolt in to the SX too.

    The question now is in what will give the best ride. I do heavy trail riding, usually on rocky logging roads at higher speeds and want soft, but not bottoming out/dangerous soft

    http://www.3wheelerworld.com/showthr...t=Raptor+shock

  4. #64
    GSUwhiskers's Avatar
    GSUwhiskers is offline At The Back Of The Pack Arm chair racerFirst time rider
    Join Date
    May 2014
    Location
    Georgia
    --
    168
    So what kind of riding is ideal for a stiff shock?

  5. #65
    Join Date
    Oct 2011
    Location
    Connecticut
    --
    88
    More track, whoops, jumping type stuff which I've gotten too old for, although a stiffer setup can absorb some of the rocky terrain at higher speeds though.

  6. #66
    Join Date
    Oct 2011
    Location
    Connecticut
    --
    88
    So I spent a little extra for a crispy clean 2008 300ex shock on eBay and it fit great with two spacer washers and some reducer bushings! I won't know how well it works until my first real trail ride, but it looks and feels very promising.

    The original shock was mounted with the adjustment on the bottom and the 300ex shocks seem to be mounted with adjustment on the top, so I mounted it that way. Not sure if it was correct or not, so I'm open to feedback!

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  7. #67
    Join Date
    May 2014
    Location
    NW Houston (Cypress)
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    57
    Quote Originally Posted by dreux13 View Post
    So I spent a little extra for a crispy clean 2008 300ex shock on eBay and it fit great with two spacer washers and some reducer bushings! I won't know how well it works until my first real trail ride, but it looks and feels very promising.

    The original shock was mounted with the adjustment on the bottom and the 300ex shocks seem to be mounted with adjustment on the top, so I mounted it that way. Not sure if it was correct or not, so I'm open to feedback!

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    How did it ride? I am looking to do this to my SX as well and will spend the extra cash for a clear newer 300ex shock but am fearful that the ride quality will not be worth it...

  8. #68
    Join Date
    Oct 2011
    Location
    Connecticut
    --
    88
    I finally got a chance to ride it with the 300ex shock and it rode great! It was on a light track up at the New England trike fest at Backwoods. While the back end feels stiff to just push down on the grab bar, it soaks up everything when actually riding! Definitely a needed upgrade!

  9. #69
    Join Date
    Apr 2012
    Location
    USA
    --
    4,114
    It fit great with two spacer washers and some reducer bushings!
    Were the washers and bushings a standard size, or did you have to machine your own?

    Glad the ride report came back good. The spring looks heavier, and compressed more, but it is progressive. Did you noticed your stock shock was adjusted to the stiffest setting?

  10. #70
    Join Date
    Oct 2011
    Location
    Connecticut
    --
    88
    Quote Originally Posted by ps2fixer View Post
    Were the washers and bushings a standard size, or did you have to machine your own?

    Glad the ride report came back good. The spring looks heavier, and compressed more, but it is progressive. Did you noticed your stock shock was adjusted to the stiffest setting?
    For once, I didn't need to do any machining! I simply bought the 12mm to 10mm reducers found here.

    http://www.dimecitycycles.com/12mm-o...-adapters.html

    The washers were simply spare washers I had in my parts bin.

    The stock shock was on its stiffest setting as well. Between the 200x forks, the 300ex shock, and my pro taper bars, this thing is so nice to ride!

  11. #71
    Join Date
    Apr 2012
    Location
    USA
    --
    4,114
    Thanks for the link and info, I'm tossing the idea around, but probably should look into getting new bearings first since it seems the swing arm bearings are pretty shot on my machine.

  12. #72
    Join Date
    Aug 2014
    Location
    South Louisiana
    --
    1,915
    Has anyone tried the 300ex shock on an 85 Big Red?
    "Roll on 3"

    RIP Ol' Deuce

    "Long Live the ATC"
    Building: ATCr125x
    Riding: ATC200sx
    "I am not a mechanic, mechanics get paid for this. I do it because I enjoy it."

  13. #73
    Join Date
    Sep 2010
    Location
    Maine
    --
    464
    I'll have to take a look at one of my sx's i bought a few years ago. It has a red shock on it. It might be a ex shock...
    Current Trikes
    2 1985 Honda 250sx
    1985 Big Red
    2 1983 YTM 200k's. 1 for parts.
    KLT 250 Prairie
    1982 Honda 185 - Waiting to be saved
    1985 125m Parts Machine

    Still on the hunt for a 1986 350x and 250r.

  14. #74
    Join Date
    May 2013
    Location
    Medford, MN
    --
    56

    Side by side comparison of a 01 raptor 660 shock and a 250sx shock.
    Sadly the raptor shock doesnt just bolt on. Theres some clearance issues for the top mount

    Sent from my SM-G920P using Tapatalk

  15. #75
    Join Date
    Jul 2005
    Location
    Manheim, PA
    --
    5,742
    use a stock 300ex one. It will be way better

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